Complex Time Evolution of Open Quantum Systems
Quantum Physics
2011-04-20 v1
Abstract
We combine, in a single set-up,the complex time parametrization in path integration, and the closed time formalism of non-equilibrium field theories to produce a compact representation of the time evolution of the reduced density matrix. In this framework we introduce a cluster-type expansion that facilitates perturbative and non-perturbative calculations in the realm of open quantum systems. The technical details of some very simple examples are discussed.
Cite
@article{arxiv.1104.3671,
title = {Complex Time Evolution of Open Quantum Systems},
author = {C. N. Gagatsos and A. I. Karanikas and G. I. Kordas},
journal= {arXiv preprint arXiv:1104.3671},
year = {2011}
}
Comments
To appear in "Open Systems and Information Dynamics"